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The Future of the Suwannee River Sill A Review and Update S.B. Aicher – USFWS, Okefenokee NWR.

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Presentation on theme: "The Future of the Suwannee River Sill A Review and Update S.B. Aicher – USFWS, Okefenokee NWR."— Presentation transcript:

1 The Future of the Suwannee River Sill A Review and Update S.B. Aicher – USFWS, Okefenokee NWR

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17 Downstream Flows Water Quality Ground-water levels

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21 Effects of the Sill Downstream No significant changes in ground-water levels at wells downgradient.

22 Calcium Chloride Iron Magnesium Silica Sodium Tannin and lignin Solids residue Strontium Zinc

23 Effects of the Sill Downstream No significant changes in ground-water levels at wells downgradient. No significant change in concentrations of water-quality constituents in flows at the sill.

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25 Effects of the Sill Downstream No significant changes in ground-water levels at wells downgradient. No significant change in concentrations of water-quality constituents in flows at the sill. The sill increased the base water levels immediately upstream of the sill by 6 ft.

26 Effects of the Sill Downstream No significant changes in ground-water levels at wells downgradient. No significant change in concentrations of water-quality constituents in flows at the sill. The sill increased the base water levels immediately upstream of the sill by 6 ft. No significant changes in water levels downstream from the sill.

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28 Effects of the Sill Downstream No significant changes in ground-water levels at wells downgradient. No significant change in concentrations of water-quality constituents in flows at the sill. The sill increased the base water levels immediately upstream of the sill by 6 ft. No significant changes in water levels downstream from the sill. The sill decreased the peak flows from the sill to Fargo, Georgia.

29 Effects of the Sill Downstream No significant changes in ground-water levels at wells downgradient. No significant change in concentrations of water-quality constituents in flows at the sill. The sill increased the base water levels immediately upstream of the sill by 6 ft. No significant changes in water levels downstream from the sill. The sill decreased the peak flows from the sill to Fargo, Georgia. The sill increased the base flows downstream as far as Blue Sink.

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